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$87+ Cheap flights from San Jose to St. Louis (SJC - STL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
SJC — STL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Jose to Lambert-St Louis are usually found in October or September, booked 15 days in advance, depart on a Tuesday or Thursday and return on a Monday

Cheap flight deals from San Jose to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from San Jose (SJC) to St. Louis (STL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2025.

Round-trip from

$199
(Booking.com)

One-way from

$87
(Mytrip)

Popular in

December

Cheapest in

October

Average price

$345
From San Jose to Lambert-St Louis
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One-way flight from San Jose to Lambert-St Louis
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Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from San Jose to St. Louis

Cheapest flights from San Jose to St. Louis
Explore the most affordable flight options available from San Jose to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2612:25 pmSJC - STL
1 stop18h 41mFrontier
Sun 9/287:55 pmSTL - SJC
1 stop17h 35mFrontier
Deal found 9/16$178
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2812:26 pmSJC - STL
1 stop18h 40mFrontier
Sat 10/47:55 pmSTL - SJC
1 stop17h 31mFrontier
Deal found 9/16$199
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:14 pmSJC - STL
1 stop16h 52mFrontier
Sun 10/57:55 pmSTL - SJC
1 stop17h 35mFrontier
Deal found 9/16$226
This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:14 pmSJC - STL
1 stop16h 52mFrontier
Sat 9/277:55 pmSTL - SJC
1 stop17h 31mFrontier
Deal found 9/16$252
This Booking.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/612:25 pmSJC - STL
1 stop18h 42mFrontier
Thu 10/97:52 pmSTL - SJC
1 stop17h 40mFrontier
Deal found 9/17$275
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/257:15 amSJC - STL
2 stops12h 08mDelta
Tue 11/46:00 amSTL - SJC
2 stops14h 55mDelta
Deal found 9/15$314
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:25 pmSJC - STL
1 stop18h 41mFrontier
Sun 9/217:55 pmSTL - SJC
1 stop17h 35mFrontier
Deal found 9/15$315
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:35 amSJC - STL
1 stop7h 20mDelta
Sat 10/186:00 amSTL - SJC
2 stops11h 57mDelta
Deal found 9/16$319
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/297:35 pmSJC - STL
2 stops12h 02mDelta
Tue 11/46:00 amSTL - SJC
2 stops11h 57mDelta
Deal found 9/17$324
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1311:35 amSJC - STL
2 stops10h 49mDelta
Thu 10/167:30 pmSTL - SJC
1 stop6h 10mDelta
Deal found 9/16$325
This Vliegwinkel deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:51 amSJC - STL
1 stop10h 08mHawaiian Airlines
Thu 11/64:14 pmSTL - SJC
1 stop8h 45mHawaiian Airlines
Deal found 9/15$331
This Trip.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/308:00 amSJC - STL
1 stop7h 34mMultiple Airlines
Sat 10/47:55 pmSTL - SJC
1 stop17h 31mMultiple Airlines
Deal found 9/15$334

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Jose to St. Louis that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from San Jose to St. Louis that are best for you.

Fly from

San Jose

Fly to

St. Louis

Route

Depart

Return

Price

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 11/15

7:30 pm-9:46 am

2 stops12h 16m

Lambert-St Louis

Wed 11/19

12:49 pm-10:17 pm

2 stops11h 28m

$314

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 10/29

7:35 pm-9:37 am

2 stops12h 02m

Lambert-St Louis

Tue 11/4

2:29 pm-10:08 pm

2 stops9h 39m

$324

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Sat 10/25

6:35 am-3:55 pm

1 stop7h 20m

Lambert-St Louis

Tue 11/4

6:00 am-6:55 pm

2 stops14h 55m

$335

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Tue 11/25

7:30 pm-8:55 am

2 stops11h 25m

Lambert-St Louis

Tue 12/2

7:56 pm-11:59 pm

1 stop6h 03m

$335

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Mon 11/24

7:30 pm-9:46 am

2 stops12h 16m

Lambert-St Louis

Tue 12/2

7:56 pm-11:59 pm

1 stop6h 03m

$351

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 2/19

9:30 am-11:56 pm

2 stops12h 26m

Lambert-St Louis

Fri 2/27

2:55 pm-7:04 pm

1 stop30h 09m

$354

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Fri 11/14

7:30 pm-9:46 am

2 stops12h 16m

Lambert-St Louis

Thu 11/20

6:00 am-3:50 pm

2 stops11h 50m

$356

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Thu 12/11

1:01 pm-10:02 am

2 stops19h 01m

$124

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 10/15

11:35 am-12:24 am

2 stops10h 49m

$141

San JoseSt. Louis

SJC - STL

SJCSTL

San Jose

Wed 10/22

7:35 pm-9:37 am

2 stops12h 02m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 15 results
1
2

Best time to book a flight from San Jose to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from San Jose with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Jose to St. Louis

How far ahead should I book a flight from San Jose to St. Louis?

Use this chart to determine the optimal time to book a round-trip flight from San Jose to St. Louis. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from San Jose to St. Louis, you should look to book at least 15 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Jose to St. Louis?

Currently, August is the cheapest month in which you can book a flight from San Jose to St. Louis (average of $311). Flying from San Jose to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJC to STL?

Find hourly flight availability from San Jose to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

It’s typically best to fly out from San Jose to St. Louis in the afternoon. Doing so could potentially save you 39% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing St. Louis

Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated September 17, 2025.
Read through reviews of airlines operating flights from San Jose to St. Louis, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,173 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from San Jose to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Jose to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from San Jose. Booking flights from San Jose (SJC) to Lambert-St Louis (STL) should be relatively easy as there is 1 daily flight to St. Louis from 5 different airlines. 5h 40m is how long a flight from San Jose to Lambert-St Louis will take if you book a nonstop flight.

  • How long is the flight from San Jose to St. Louis?

    There are many flights that can get you from San Jose to St. Louis in 12h 16m. Fly via Delta to get the fastest option. The distance from San Jose to St. Louis is about 1710 mi.

  • What are the cheapest airlines flying from San Jose to St. Louis round-trip?

    Frontier, at $118, was found to be the cheapest airline from San Jose to St. Louis.Alternate airlines to your destination round-trip include American Airlines and United Airlines. Frontier is currently priced 69% below the average price you’ll pay for this route.

  • Can I find deals for flights from San Jose to St. Louis that include hotel bookings?

    Yes. In addition to deals on San Jose to St. Louis flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Jose to St. Louis?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Jose to St. Louis.

  • Can I find deals for business class flights from San Jose to St. Louis?

    Yes. Cheapflights offers flight deals from San Jose to St. Louis by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Jose to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from San Jose to St. Louis (average of $311). Flying from San Jose to St. Louis in March is currently the most expensive (average of $356). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Edwardsville
O'Fallon
Fairview Heights
Maryland Heights
Collinsville
Eureka
Glencoe
St. Peters
Chesterfield
Alton
Farmington
Festus

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Top 5 airlines flying from San Jose to St. Louis

Discover the top 5 airlines that operate flights from San Jose to St. Louis. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$218FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$246Average$368FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$246Average$370FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$378FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$332Average$435FlexibilityNo cancel feeOn-time63%

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